Add platform infrastructure configuration

infrastructure/storage/pgadmin-local-pv/README.md

@@ -0,0 +1,12 @@
+# pgAdmin SSD Local PV
+
+pgAdmin 설정 데이터베이스와 세션 상태를 위한 2Gi Local PV입니다.
+
+- 호스트 경로: /srv/k3s/ssd/pgadmin
+- 노드: donghyeon-system-product-name
+- StorageClass: ssd-local-pgadmin-retain
+- 회수 정책: Retain
+
+PVC나 배포를 제거해도 PV와 호스트 데이터는 자동 삭제하지 않습니다.
+호스트 디렉터리는 적용 스크립트가 소유권과 파일시스템 경계를 검증한 뒤
+생성합니다.

infrastructure/storage/pgadmin-local-pv/kustomization.yaml

@@ -0,0 +1,6 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+resources:
+  - storage-class.yaml
+  - pgadmin-pv.yaml

infrastructure/storage/pgadmin-local-pv/pgadmin-pv.yaml

@@ -0,0 +1,26 @@
+apiVersion: v1
+kind: PersistentVolume
+metadata:
+  name: pgadmin-data-local-pv
+  labels:
+    app.kubernetes.io/name: pgadmin4
+    app.kubernetes.io/part-of: platform
+    platform.hyeonworks.com/storage-tier: ssd
+spec:
+  capacity:
+    storage: 2Gi
+  volumeMode: Filesystem
+  accessModes:
+    - ReadWriteOnce
+  persistentVolumeReclaimPolicy: Retain
+  storageClassName: ssd-local-pgadmin-retain
+  local:
+    path: /srv/k3s/ssd/pgadmin
+  nodeAffinity:
+    required:
+      nodeSelectorTerms:
+        - matchExpressions:
+            - key: kubernetes.io/hostname
+              operator: In
+              values:
+                - donghyeon-system-product-name

infrastructure/storage/pgadmin-local-pv/storage-class.yaml

@@ -0,0 +1,11 @@
+apiVersion: storage.k8s.io/v1
+kind: StorageClass
+metadata:
+  name: ssd-local-pgadmin-retain
+  labels:
+    app.kubernetes.io/part-of: platform
+    platform.hyeonworks.com/storage-tier: ssd
+provisioner: kubernetes.io/no-provisioner
+reclaimPolicy: Retain
+volumeBindingMode: WaitForFirstConsumer
+allowVolumeExpansion: false